Dear Prakash,

although I am not a plant pathologist I would briefly describe what we do to overcome fungal diseases. During transplanting we immerse the root system in a solution of either fosetyl-al or rovral (wide range fungicides), in order to reduce root attack by soil born fungi. If you have fungi attacking the leaves then you should first identify these and then find the correct fungicide to control infection. If you have fungi attacking the aerial part of the plant consider also to decrease relative humidity (if you are working in a greenhouse the open the windows regularly to reduce RH). But either case I would suggest to identify the fungus and then select the correct fungicide.

Actually it depends on the type of diseases you encountered. But overally try to immerss the transplants to fungicide like mancozeb, thiram, zineb and similar fungicides. Reduce the relative humidity and adjust the irrigation to reduce the foliar dieseases.

Prakash,

strawberry are particularly tricky in terms of sanitary status. In fact, very commonly (or even always), plants harbour a numberof plant pathogens within tissues. You can try to reduce plant death with fungicides, but it will be always an inefficient method. You should do some more efforts to get plants more 'healthy'.

Its difficult to control soil borne fungi but before planting deep the plant material in fungicide solution the fungicide ridomil (Mancozeb+ Metalaxyl) is effective to control soil borne pathogens

Dear Prakash,

As it is mentioned, you should know wich is the aetiology, the cause of the dead. Maybe it is caused by Phytophthora or Pythium species but is necessari any diagnostic to ensure recommendations. To control this species metalaxyl is very effective but it the cause is not a oomycete like above you will not have control of disease.

Jaume

Should you know Bavistin doesn't works for Phytophthora or Pythium, so diagnostic of fungus is prefereable to decide the fungicide.

I can only support the answers of my predecessors that you will need to identify the causal disease first, before you can find an effective control. To my knowledge there is a very good compendium of strawberry diseases from APS press. Generally you should check your cultivation condition and propagation material, before using plant protection products, otherwise you will not achive sustainable control. After you have found the cause you should be able to find adequate advice and effective control.

Dear Prakash

I am agree with the answer given by Mr. Jauma most important soil borne disease of strawberry is cused by Phytophthora spp. It is quit difficult to isolate so while transplanting you must immerse the seedlings for few minute in systemic fungicidesv or you can go for biocontrol by using trichoderma spp.

Dear Dr. Shailesh, it is not difficult to isolate most of Phytophthora species, not if you use "baiting" method with xarnation petals. Intead of this, the method is for plant pathologogists working in a laboratory. We do this usually every week.

Sysemic fungicides as triazoles doesn't work for Phytophthora species, only metalaxyl, fosetyl-Al and those of this group. Perhaps biocontrol is useful, I don't know.

@Dr GAWANDE

During planting, its roots were treated with Tricoderma viridi but still its responce was no so positive.